On-line GK Test on Scientific Inventions - Set 04

G.K. Practice Test: Question Set - 04

1. What item,
originally called the 'Whirlwind', was invented by Ives McGaffey in 1869?

(A) Blender

(B) Electric
mixer

(C) Washing
machine

(D) Vacuum
cleaner

Answer: Option D

2. This
African-American woman physical therapist worked with soldiers disabled in
World War II. She invented a device that helped the disabled to eat by
delivering food through a tube to a mouthpiece.

(A) Bessie
Blount

(B) Marjorie
Joyner

(C) Mae Jamison

(D) Beulah Henry

Answer: Option A

3. In which
decade was the ARRL founded?

(A) 1940s

(B) 1930s

(C) 1920s

(D) 1910s

Answer: Option D

4. Who invented
Automobiles using gasoline?

(A) Leo
H Baekeland

(B) Karl
Benz

(C) Evangelista
Torricelli

(D) Kirkpatrick
Macmillan

Answer: Option B

5. The initials
JCB on earth-moving equipment are those of the founder of the company that
makes it. What is his name?

(A) John
Christopher Ballantyne

(B) Joseph Cyril
Bamford

(C) John
Christopher Baxter

(D) Jack
Croxford Baker

Answer: Option B

6. What item of
apparel was invented by Ellery Chun, a Hawaiian clothing merchant, in 1931?

(A) String
bikini

(B) Muumuu

(C) Aloha shirt

(D) Capri pants

Answer: Option C

7. In which
decade was the first solid state integrated circuit demonstrated?

(A) 1950s

(B) 1960s

(C) 1970s

(D) 1980s

Answer: Option A

8. What is the
name of the CalTech seismologist who invented the scale used to measure the
magnitude of earthquakes?